/Engine/Source/Runtime/AnimationCore/Public/BoneWeights.h
Set the normalization type when manipulating the weight values inFBoneWeights
[FBoneWeightsSettings](API\Runtime\AnimationCore\FBoneWeightsSettings) & SetNormalizeType ( [EBoneWeightNormalizeType](API\Runtime\AnimationCore\UE__AnimationCore__EBoneWeightNo-) InNormalizeType )